1.Clinical data analysis of severe acute paraquat poisoning.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(10):786-787
Adolescent
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Adult
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Female
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Herbicides
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poisoning
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Humans
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Male
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Middle Aged
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Paraquat
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poisoning
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Rural Population
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Young Adult
2.Remote intelligent Brunnstrom assessment system for upper limb rehabilitation for post-stroke based on extreme learning machine.
Yue WANG ; Lei YU ; Jianming FU ; Qiang FANG
Journal of Biomedical Engineering 2014;31(2):251-256
In order to realize an individualized and specialized rehabilitation assessment of remoteness and intelligence, we set up a remote intelligent assessment system of upper limb movement function of post-stroke patients during rehabilitation. By using the remote rehabilitation training sensors and client data sampling software, we collected and uploaded the gesture data from a patient's forearm and upper arm during rehabilitation training to database of the server. Then a remote intelligent assessment system, which had been developed based on the extreme learning machine (ELM) algorithm and Brunnstrom stage assessment standard, was used to evaluate the gesture data. To evaluate the reliability of the proposed method, a group of 23 stroke patients, whose upper limb movement functions were in different recovery stages, and 4 healthy people, whose upper limb movement functions were normal, were recruited to finish the same training task. The results showed that, compared to that of the experienced rehabilitation expert who used the Brunnstrom stage standard table, the accuracy of the proposed remote Brunnstrom intelligent assessment system can reach a higher level, as 92.1%. The practical effects of surgery have proved that the proposed system could realize the intelligent assessment of upper limb movement function of post-stroke patients remotely, and it could also make the rehabilitation of the post-stroke patients at home or in a community care center possible.
Algorithms
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Arm
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physiopathology
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Artificial Intelligence
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Humans
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Movement
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Recovery of Function
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Reproducibility of Results
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Software
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Stroke Rehabilitation
4.Clinical efficacy of combined portal vein resection and construction in the treatment of hilar cholangiocarcinoma: A Meta-analysis
An YU ; Qiang HUANG ; Chenhai LIU ; Xiansheng LIN ; Fang XIE
Chinese Journal of Digestive Surgery 2017;16(1):65-70
Objective To systematically evaluate the safety and effectiveness of combined portal vein resection and reconstruction in the resection of hilar cholangiocarcinoma.Methods Literatures were researched using Cochrane Library,PubMed,Embase,China Biology Medicine disc,China National Knowledge Infrastructure,Wanfang database,VIP database from January 31,2006 to January 31,2016 with the key words including “hilar cholangiocarcinoma”“Klatskin tumor”“Bile duct neoplasm”“Vascular resection”“portal vein resection”“肝门部胆管癌”“血管切除”“门静脉切除”.The clinical studies of resection of hilar cholangiocarcinoma with portal vein resection and construction and without vascular resection and construction were received and enrolled.Two reviewers independently screened literatures,extracted data and assessed the risk of bias.Patients who underwent resection of hilar cholangiocarcinoma combined with portal vein resection and reconstruction were allocated into the portal vein resection group and patients who didn't undergo vascular resection were allocated into the no vascular resection group.Analysis indicators included (1) results of literature retrieval;(2) results of Meta-analysis:① incidence of postoperative complications (hepatic failure,biliary fistula,intra-abdominal hemorrhage),② postoperative mortality,③ patients' prognosis,④ related indicators of postoperative pathology (lymph node metastasis rate,moderate-and low-differentiated rate,nerve invasion rate,negative rate of resection margin).The heterogeneity of the studies was analyzed using the I2 test.The hazard ratio (HR) and 95% confidence interval (CI) were used for assessing the prognostic indicators.The incidence of complications,mortality and pathological indicators were evaluated by the odds ratio (OR) and 95% CI.Results (1) Results of literature retrieval:13 retrospective studies were eurolled in the meta-analysis,and the total sample size was 1 668 cases including 437 in the portal vein resection group and 1 231 in the no vascular resection group.(2) Results of Meta-analysis:① incidence of postoperative complications was respectively 39.86% in the portal vein resection group and 35.27% in the no vascular resection group,with no statistically significant difference between the 2 groups (OR =1.12,95% CI:0.82-1.53,P >0.05).The results of subgroup analysis showed that hepatic failure,biliary fistula and intra-abdominal hemorrhage were postoperative main complications,and the incidences were 17.09%,8.79%,6.25% in the portal vein resection group and 10.62%,9.69%,2.51% in the no vascular resection group,respectively,with no statistically significant difference between the 2 groups (OR =0.48,1.13,0.82,95% CI:0.23-1.02,0.45-2.83,0.21-3.12,P > 0.05).② Postoperative mortality was respectively 5.38% in the portal vein resection group and 3.88% in the no vascular resection group,with no statistically significant difference between the 2 groups (OR =1.16,95% CI:0.62-2.14,P > 0.05).③ There was statistically significant difference in patients' prognosis between the 2 groups (HR =1.81,95% CI:1.52-2.16,P < 0.05).④ The related indicators of postoperative pathology:lymph node metastasis rate,moderate-and low-differentiated rate and negative rate of resection margin were 41.55%,76.42%,63.74% in the portal vein resection group and 33.42%,66.75%,64.29% in the no vascular resection group,respectively,with no statistically significant difference between the 2 groups (OR =1.45,1.59,0.67,95% CI:0.95-2.21,0.97-2.61,0.37-1.20,P > 0.05).The nerve invasion rate was 83.47% in the portal vein resection group and 64.90% in the no vascular resection group,with a statistically significant difference between the 2 groups (OR =2.61,95 % CI:1.45-4.70,P < 0.05).Conclusion Combined portal vein resection and reconstruction is safe and feasible in the treatment of hilar cholangiocarcinoma,and the prognosis of patients with portal vein invasion is worse than that without portal vein invasion.
5.The Measurement of Hippocampal T_2 Relaxation Time in Healthy Chinese and Its Influencing Factors
Chun FANG ; Erzhen WANG ; Qiang BAO ; Fangrong YU ; Lizhang WANG
Journal of Practical Radiology 1991;0(03):-
0.05).However,HCT2s of right side and left side were significantly negatively correlated to age(r=-0.606,-0.522;P=0.000,0.000).Conclusion HCT2s in healthy Chinese aged 10~59 year measured on SE dual echo images are quite stable,and age is an influencing factor of HCT2,but not side,sex and handedness.
6.Microglandular adenosis of breast: report of a case.
Gui-mei QU ; Zhi-qiang LANG ; Wei-dong YAO ; Guo-hua YU ; Wen-fang YU
Chinese Journal of Pathology 2007;36(9):643-644
7.A Retrospective Study of Chinese Herbal Medicine Combined with Systemic Chemotherapy and/or Regional Arterial Perfusion for Pancreatic Cancer with Liver Metastases.
Hua-qiang OUYANG ; Zhan-yu PAN ; Fang LIU ; Guang-ru XIE ; Zhu-chen YAN
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(6):654-658
OBJECTIVETo evaluate the efficacy and safety of Chinese herbal medicine combined with systemic chemotherapy and/or regional arterial perfusion for pancreatic cancer with liver metastases (PCLM).
METHODSWe retrospectively selected 292 patients with PCLM who were treated by Chinese herbal medicine combined with systemic chemotherapy and/or regional arterial perfusion at Tianjin Medical University Cancer Hospital from January 2001 to December 2010. All patients were assigned to the Western medicine treatment group (157 cases) and the integrative medicine treatment group (135 cases). Patients in the Western medicine treatment group were treated with gemcitabine (GEM)-based chemotherapy, and partial of them received regional arterial perfusion. Those in the integrative medicine treatment group additionally took Chinese herbs of clearing heat and eliminating mass for at least 4 weeks. The median survival time (MST) , adverse reactions and the incidence of complications were observed.
RESULTSThere was no statistical significance in general data between the two groups (P > 0.05). There was statistical difference in MST between the two groups (4.8 months vs 5.5 months, P < 0.05). No death occurred during chemotherapy or regional arterial perfusion. All toxic or adverse reactions were tolerable.
CONCLUSIONChinese herbal medicine combined with systemic chemotherapy and/or regional arterial perfusion was effective and safe, and it could be optimally selected as palliative therapy for PCLM.
Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Complementary Therapies ; methods ; Deoxycytidine ; analogs & derivatives ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Liver Neoplasms ; drug therapy ; secondary ; Pancreatic Neoplasms ; drug therapy ; pathology ; Retrospective Studies
8.Anisotropic parameters of diffusion tensor imaging in breast: a preliminary study for detection and differentiation of malignant tumors
Zhijun MA ; Ruisheng JIANG ; Qiang FENG ; Wei FANG ; Shihang SUN ; Sujuan ZHANG ; Gang YU
Chinese Journal of Radiology 2014;48(3):180-183
Objective To investigate the diagnostic value of DTI anisotropy parameters in breast malignant tumors.Methods Fifty four patients,including 33 patients with malignant tumors and 21 patients with benign lesions,were retrospectively analyzed.The E1,MD and FA of lesions were measured and compared by paired t test between the malignant tumors and the contralateral healthy breast tissue.The difference between malignant tumors and benign lesions was analyzed by independent sample t test.Logistic regression analysis was made using E1,FA,MD as predictors in detecting and differentiating the malignant tumors,ROC curve analysis was performed to compare diagnostic performance based on the area under the curve (AUC).Results E1,MD and FA in malignant tumors were (0.99 ± 0.12) × 10-3mm2/s,(0.85 ±0.26) × 10-3mm2/s and 0.20 ±0.08 respectively,and those in normal breast tissues were(1.46 ± 0.55) × 10-3 mm2/s、(1.48 ± 0.44) × 10-3 mm2/s and 0.29 ± 0.17 respectively.Those parameters in benign lesions were (1.80 ±0.42) × 10-3mm2/s,(1.38 ±0.52) × 10-3mm2/s and 0.22 ± 0.10 respectively.Significant statistic differences were found between malignant tumors and normal breast tissues in E1,MD and FA (t =-4.889,-6.449,-2.842 ; P < 0.01).Significant statistic differences were also found between malignant tumors and benign lesions in E1 and MD (t =-10.476,-4.394; P < 0.01) with no difference found in FA (P > 0.05).E1,MD and FA are independent predictors in malignant tumors' detection,and the combination of E1,MD and FA significantly improved discrimination between cancer and normal tissue over each one alone with the sensitivity 97.0% (32/33),specificity 97.0% (32/33),accuracy 97.0% (64/66).Combination of E1 and MD had a similar AUC with E1 and a more AUC than MD and FA,with the sensitivity 97.0% (32/33),specificity 100.0% (21/21),accuracy 98.1% (53/54).Conclusion The regression model combining E1,MD and FA is most valuable in breast cancer detection and E1 is the preferred index for the differentiation of breast cancers from benigin lesions.
9.Clinical characteristics of the chronic kidney disease in the elderly: a cross-sectional study
Hui ZHAO ; Yu WANG ; Liqiang MENG ; Luxia ZHANG ; Fang WANG ; Qiang ZENG ; Xiaomei LI
Chinese Journal of Nephrology 2014;30(5):332-337
Objective To analyze the baseline clinical characteristics of the chronic kidney disease (CKD) in aged people in the clinic.Methods Patients aged 18 years or older in our CKD clinic from October 2003 to December 2012 were included in this study.According to their age patients were divided into 2 groups:aged CKD group:aged 65 or older and non-aged CKD group:younger than 65.A group of the elderly without CKD from health screening program were selected as aged non-CKD control group.Causes,distributions of stages and complications of CKD in three groups were analyzed.Results The major cause of the elderly CKD was hypertension,different from that of younger CKD.The distribution of CKD stage in the elderly was mainly in the G3b stage,different from that in the younger.Anemia and mineral bone disease presented in earlier CKD stage in the aged CKD patients and the prevalence was higher than in the aged non-CKD group.The prevalence of hypertension had no statistical difference between the two CKD groups,but hypertension control rate was lower in aged CKD patients.Conclusions The clinical characteristics including causes and renal stage are different between the young and aged CKD patients.Complications such as anemia and mineral bone disease presents in earlier renal stage in aged CKD patients which means we should monitor and interfere earlier.
10.High performance liquid chromatography analysis of porcine platelet-derived gro wth factor and its effect on DNA synthesis of human vascular endothelial cells
Yusheng REN ; Zonggui WU ; Fang CUI ; Guoliang JIA ; Shiqiang YU ; Qiang CHEN
Academic Journal of Second Military Medical University 2001;22(2):155-158
Objective: To determine the molecular weight and p urity of porcine platelet-derived growth factor (pPDGF) and to investigate its effect on DNA synthesis of human umbilical vein endothelial cells. Metho ds: In the present experiment, the high performance liquid chromatograph y was used and the molecular weight and purity of pPDGF were studied. Human umbi lical vein endothelial cells was cultured and effects of pPDGF on DNA synthesis of endothelial cells was observed by 3H-TdR incorporation in vitro. Results: The findings of high performance liquid chromatography showed that the molecular weight of pPDGF was 29 120 and the purity was 89.46%, a nd pPDGF significantly promoted DNA synthesis of quiescent endothelial cells wit h a maximal response at a concentration of 40 ng/ml at 48 h. Conclusion: The molecular weight of pPDGF is 29 120, and it can promote DNA synthes is of cultured human umbilical vein endothelial cells.